/**
 * cookie相关操作
 * Created by fly on 2017/5/1.
 */
/**
 * 设置cookie
 * @param name 键
 * @param value 值
 */
function setCookie(name,value) {
    var Days = 30;
    var exp = new Date();
    exp.setTime(exp.getTime() + Days*24*60*60*1000);
    document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
/**
 * 获取cookie
 * @param name 要获取的cookie的键
 * @returns {null}
 */
function getCookie(name) {
    var arr,reg=new RegExp("(^| )"+name+"=([^;]*)(;|$)");
    if(arr=document.cookie.match(reg))
        return unescape(arr[2]);
    else
        return null;
}
/**
 * 删除cookie
 * @param name 要删除的cookie的键
 * @returns {null}
 */
function delCookie(name) {
    var exp = new Date();
    exp.setTime(exp.getTime() - 1);
    var cval=getCookie(name);
    if(cval!=null)
        document.cookie= name + "="+cval+";expires="+exp.toGMTString();
}
exports.setCookie = setCookie;
exports.getCookie = getCookie;
exports.delCookie = delCookie;